A neighborly dispute over dog poop turned deadly in the Tacony section of Philadelphia.

It happened just after 4 p.m. Tuesday on the 6500 block of Torresdale Avenue. Tyrirk Harris, 27, is accused of killing his 47-year-old neighbor Franklin Manuel Santana, according to Philadelphia Police.

Cops say Santana confronted Harris over his dogs.

"A German Shepherd and a Chihuahua -- these dogs were running free," said Philadelphia Police Chief Inspector Scott Small. "There were dog feces on several of the neighbor's yards. That's what led to this particular confrontation."

Police say Harris then pulled out a 9-mm handgun and shot his neighbor several times, striking Santana twice in the neck.